Band-saw guide.



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BAND SAW GUIDE;

APPLIGATIOEPILBD 2PT. 19, 1910.

' Patented Jan.10,1911.

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sane-sew @UIfiE.

Spccieca tizm oi" Letters Patent.

Patented Jan. to, 19%.

Application filed fieptember 19, 1910. Serial No. 583,663.

To all whom it may concern:

Be it known that I, ROLANDES /VHITAKEB, a citizen 0% the United States,residing in I Bigelow, in the county of Perry and State oil Arkansas,have invented certain new and useful.- Improvements in Band-Saw Guides,-

of which the following is a specification.

My invention relates to guides for band was of the class in whichprovision is made for adjusting the different members of the guide toaccommodate saws of different Widths, the object of my invention is toprovide a guide of this class which may be adily applied to diiferentkinds of sawing machines, which is simple in construction, is composedof relatively few parts, is readily ad usted and when once set is firmand rigid and performs its functions with accuracy.

In carrying out my invention, I provide a base plate which is adapted tobe attached to the bed late of a sawing machine, and which carries thetwo stationary members of the guide. On this base plate I provide anadjustable section, carrying the other two guide members which areadapted to be moved toward and from the stationary members toaccommodate saws of different widths. The adjustable section slides onparallel rails formed on the base plate and is connected thereto -bybolts which when loosened permit it to be adjusted but which,

, when tightened, provide a firm and ri id connection between thesliding section and the base. Each gulde member comprises a housing,carrying an adjustable guide block,

provided with a facing of suitable material such as Babbitt metal.

In the accompanying drawings :Figure 1 is a top plan now of a band sawguide embodying my improvements. Fig. 2 shows a Side elevation thereof,indicating its relation with the saw to which it is applied, the baseplates of the sawing machine being indicated by dotted lines. Fig. 3shows a vertical central section on the line 3 3 of Fig. 1. Fi 4 shows across section on the line 4=-4 0% Fig. 1. Fig. 5 is a detail view, Showing particularly the manner of arranging a counter-sunk plate in theguide housing. Fig. 6 shows a section on the line 6-6 of 'Fig. 5.

The base late, A, comprises two parallel arms, a, a, lihving a longnarrow space, a, between them to receive the saw and connected at oneend by a solid portion, a

the guide block.

Bolt holes, a, a, a are formed-in the solid portion, (0 and in the armsnear their outer ends as shown in F i 1. Longitudinally arrangedparallel rai s, B, B, are formed on the arms of the bifurcated bed plateand on a part of the solid portion, a thereof.

Formed integrally with or rigidly secured.

to the arms of the bifurcated bed plate near their outer ends are thehousings, C1,L of the stationar guide members. Each ousing is formerwith a chamber, to receive a guide block, l), carrying a wearing plate,(l, of Babbitt metal or other suitable material and each housing isprovided with a plate E, countersunk in a recess in the housin in themanner illustrated in Figs. 5 an 6. The plates, E, receive the endthrusts of the set screws, F. When the set screws are loosened, thepressure of the plates E, on the guide blocks is relieved and they maybe adjusted, but when the screws are tightened the guide blocks are heldfirmly in their adjusted positions.

'lhcmovablc section,G,comprises two arms, g, 9 Connected at g, by aU-shaped bend. 'lhcsc arms have a space between them to receive the sawand they are formed on their under sides with grooves which receive therails, ll. 'lhc arms are slotted, as indicated at ll. and through thoseslots extend bolts, I, attached to the bed plate on opposite sides ofthe space, a, and these bolts extend up throixgh the arms of the slidingsection, their upper ends being provided with nuts, h, and washers, it.Each arm, g, carries a housing, J, for a guide block, K, provided witha, wearing plate, 7c, and each housing has a. counter-sunk plate, L,which bears against Set screws, M and N, engage the plate, L, and whenthe set screws are tightened the guide block is held firmly in position.The bolts and nuts, I, h, hold the sliding section firmly on the bedplate, but by loosening the nuts the section G may be adjusted on therails, B, to vary the distance between the stationary guide blocks andthe movable ones to accommodate saws of different widths.

It will thus be seen that the construction is such'that the guide me. bereadily applied to different kinds of and sawing machines and can beeasily adjusted to saws of different widthsand when once set is firm andrigid and will operate efficiently.

I claim as my invention l. A band saw guide, comprising a base platecomposed-of two parallel arms, connected together. at one end and havinga space between'them to accommodate the saw, guide members on oppositesides of the saw space rigidly connected with the base plate, anadjustable bifurcated section slidably mounted on the base plate andprovided with guides for the saw on'opposite sides of the saw space, andmeans for rigidly connecting the adjustable section with the base platewhereby the stationary guides on the adjustable sliding section may bearranged at'difierent distances apart to accommodate saws of differentwidths.

2. A band saw guide, comprising a base plate composed of two parallelarms with a space between them to accommodate the saw, parallel rails onthese arms, guide members rigidly connected with the arms, an adjustablesection comprising parallel arms, grooved to fit the rails, guidemembers carried by these arms, and means for securing theadjustable'section to the base plate.

3. A band saw guide, comprising a bifurcated base plate, guide blocksconnected therewith, arallel rails formed on the base plate, a biurcated adjustable section havguides and the .1)

ing grooves fitting the rails, guide blocks carried by the adjustablesection, and means for securing this section to the bed plate.

I 4:. A band saw guide, comprising abifurv late.

5. A band saw guide, comprising a bifurcated ba plate formed withparallel rails,

uide blocks carried by the base plate, a biurcated adjustable sectionhaving grooves fitting the rails and provided with slots runningparallel with the rails, guide blocks carried by the adjustable section,and bolts secured to the bed plate and extending through said slots.

In testimony whereof, I have hereunto subscribed my name.

ROLANDES WHITAKER. Witnesses I CHAS. DAVIDSON, H. G. MGLAUGHLIN.

housings, and means foradjustably connecting the said adjustable sectionwith the base

